Home / 99,112.64-136,897.44-74,073.92

Finding the Fourth Proportional to 99,112.64, 136,897.44 and 74,073.92

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Solution

The fourth proportional to 99,112.64, 136,897.44 and 74,073.92 is: 102,313.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,112.64 : 136,897.44 = 74,073.92 : x
  2. Step 2: Convert to fraction form
    99,112.64/136,897.44 = 74,073.92/x
  3. Step 3: Cross multiply
    99,112.64x = 136,897.44 × 74,073.92
  4. Step 4: Simplify right side
    99,112.64x = 10,140,530,018.76
  5. Step 5: Solve for x
    x = 10,140,530,018.76/99,112.64
  6. Step 6: Final answer
    x = 102,313.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.